Add Sum all the previous elements to a date

[wiktorius1984]

Hello, I would like the sum of hours for a month with previous months. 

my table looks like this

I would like to get something like this

Sum H and previous H =
CALCULATE(
Sum(Table[h],
FILTER(All(Table[Date]), Table[Date] <= MAX(Table[Date])
)

I tried this solution but it doesn't work

[Anonymous · Accepted solution]

@wiktorius1984 

_hours = CALCULATE(SUM('Table'[h]),ALLEXCEPT('Table','Table'[Month]))

Comm_Hours = CALCULATE(SUM('Table'[h]),FILTER(ALL('Table'[Month]),'Table'[Month]<=MAX('Table'[Month])))

[wiktorius1984]

Thank you very much, everything works beautifully